One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,5)(3,7,8,6)(9,10,14,12)(11,15,13,16)(17,18)(19,25)(20,26)(21,24)(22,23)(27,30)(28,29)(31,32)(2,5)(6,7)(9,11,14,13)(10,15,12,16)(18,23)(19,26)(24,32)(27,29)(1,2)(3,6)(4,5)(7,8)(9,11,14,13)(10,16,12,15)(18,23)(19,26)(24,32)(27,29)(1,2)(3,6)(4,5)(7,8)(9,12,14,10)(11,15,13,16)(17,19)(18,20)(21,29)(22,26)(23,25)(24,30)(27,31)(28,32)(1,3)(2,6)(4,8)(5,7)(9,13,14,11)(10,15,12,16)(17,20)(18,19)(21,30)(22,25)(23,26)(24,29)(27,32)(28,31)(17,21,22,31)(18,24,23,32)(19,27,26,29)(20,28,25,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.